489456 has 80 divisors (see below), whose sum is σ = 1547520. Its totient is φ = 146880.

The previous prime is 489449. The next prime is 489457. The reversal of 489456 is 654984.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 489456.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489456.

It is not an unprimeable number, because it can be changed into a prime (489457) by changing a digit.

489456 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4701 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (19344).

2⁴⁸⁹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773760).

489456 is an abundant number, since it is smaller than the sum of its proper divisors (1058064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489456 is a wasteful number, since it uses less digits than its factorization.

489456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 119 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 489456 is about 699.6113206631. The cubic root of 489456 is about 78.8081656444.

It can be divided in two parts, 4894 and 56, that added together give a triangular number (4950 = T₉₉).

The spelling of 489456 in words is "four hundred eighty-nine thousand, four hundred fifty-six".